Builder mechanism for spinning-machines.



W. P. STRAW.

BUILDER MECHANISM FOR SPINNING MACHINES.

APPLICATION FILED MAY 12. 1914.

1,168,231 Patented Jan. 11, 1916.

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W. P. STRAW.

BUILDER MECHANISM FOR SPINNING MACHINES.

APPLICATION FILED MAYIZ, 1914.

1,168,231. Patented Jan.11,1916.

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WILLIAM PARKEQ'STRAW, F MANCHESTER, NEW HAMPSHIRE, ASSIGNOR 'IQ DRA?ER COMPANY, 0F HOPIEDALE, MASSACHUSETTS,

A CORPORATION OF MAINE.

BUILDER MECHANISM FGB SPINNING-MACHINES.

' Patented Jan. 11, 191%.

Application filed May 12, 1914. Serial No. 838,142.

To all whom it may concern Be it known that 1, WILLIAM PARKER STnAw, a citizen of the United States, re-

" characters on the drawing representing like parts.

This invention relates to improvements in builder mechanisms for spinning machines, especially the type which are adapted to wind filling carriers having slots near the base thereof to receive afeeler adapted to operate filling replenishment or to effect some other change in the operation of the loom.

In filling carriers of the tvpe in which the feeler is adapted to enter the slot in the filling carrier or bobbin it is desirable that a sufficient amount of filling be wound at the base of the bobbin beneath the portion of the slot which receives the feeler to allow for a pick through the loom, and it is further desirable that a suiiicient amount of filling shall remain upon the bobbin base to afford an anchor which will prevent the end of the filling from being drawn off and curled up during the last pick of the loom before transfer. In order to obtain this result I have devised means whereby the winding of the filling upon the bobbin shall be commenced a short distance above the bobbin base and a partial traverse laid thereon downwardly to the base before the first full upward traverse is made. Thereafter the successive layers of filling may be made upon the bobbin in the usual manner.

In the preferred form of the invention illustrated herein this is accomplished by positioning the rotating bobbins or the thread guiding and twisting means rela tively thereto so that there ill be a clownward movement of the winding before the first full upward movement begins.

The invention illustrated in the drawings is shown in connection with a ring spinning machine but it is to be understood that the same may be applied to a cap spinning machine or to a flier frame.

Other objects of the invention and the nature thereof will be more fully set forth in the accompanying description and drawing and particularly pointed out in the annexed claims.

In the drawings, Figure 1 illustrates a front view of a portion of a spinning machine embodying my invention, Fig. 2 is a plan view of the mechanism for positioning the cam which actuates the builder mechanism so that upon the starting of the machine it will cause the downward winding of the filling upon the bobbin, Fig. 3 is an end view of the mechanism illustrated in Fig. 2, Fig. 4 is a detail view of the cam and the positioning and locking lever cooperating therewith, Fig. 5 is a view of a bobbin showing the feeler slot and the partial downward winding and first full upward winding thereon as laid by the mechanism embodying my invention.

One of the preferred forms of the inventicn is illustrated in the drawing in connection with a ring spinning .-achine which comprises the usual support-ing frame having the ladder 1, which supports a series of spindles 2 suitably driven by whirls 3 in the usual manner and having a builder or ring rail 4: adapted to be moved upward and downward relative to the ladder 1, the ring rail 4 being provided with the usual rings 5 and travelers 6. The ring rail 4 desirably may be raised and lowered by means of a se ries of rods 7 which are connected at their upper ends to the ring rail t each being provided at its lower end with a suitable flat surface 8 adapted to engage a roll 9 carried aduistably upon the end of the arm 10 of a bell crank lever which is pivoted upon a shaft 11 in a bracket 12 extending downwardly from the underside of the frame or ladder. The bell crank lever is provided with an extension 13 which may carry a suitable counterweight or be attached to a spring to counter balance the weight of the lifter rail. The arm 14 of the bell crank lever extends at substantially right angles to the arm 10 and is connected at its upper end to a chain 15 which passes over a sheave 16 and thence downwardlv over a drum 17 carried by the usual builder arm 18.

The drum 17 is mounted upon a stub shaft extending from the builder arm 18 and carrying a worm gear 20 which is adapted to mesh with the usual companion worm gear (not shown) upon a shaft 21 which carries at its front end a ratchet 22. A pawl 23 mounted upon the end of an arm 2% which embraces the shaft 21 and is connected at its opposite end to the usual actuating rod, serves to rotate the drum to wind up "the chain and raise the ring rail in the usual manner. 1

The builder arm 18 may be pivoted at its opposite end to the frameof the machine and its free end is moved up and down by a cam, preferably a four point cam, causing the bell crank lever to be rocked back and forth and therebyraising and lowering the lifter rail. The advance in the traverse of the winding upon the bobbin is caused through the action of the ratchet wheel 22 and pawl 23 since upon each downward movement of the builder arm' the ratchet wheel is advanced one step; rotating the gear 20 correspondingly and serving to reel up the chain 15 upon the drum 17, thus causing the next winding to commence at a slightly higher point upon the bobbin barrel. The construction above described may be of a usual type.

The object of the present invention is to provide suitable means for winding bobbins having feeler slots adapted to receive the feeler upon substantial exhaustion of filling to initiate the action of mechanism for effecting a change in the operation of the loom, such as the replenishment of the active shuttle thereof. In the winding of slotted bobbins of this character it is necessary that the last layer of winding covering the bobbin slot shall be unwound from the upper end downwardly in order to permit the feeler to enter the slot and call for transfer while there is a suflic'ient amount of filling upon the bobbin for the full pick of the loom. If an insufficient quantity of thread is left upon the bobbin after the feeler slot is exposed a v mispick may result or by reason of an insufiicient anchor for the end of the filling thread, the latter may curl up when drawn from the shuttle and cause a defect in the cloth.

This invention contemplates the winding of an initial partial traverse of filling from a point below the feeling portion of the feeler slot, downwardly towardthe base of the bobbin and for thereafter causing the fullupward and downward traverse of the winding.

Fig. 5 illustrates a commercial bobbin having a rectangular feeler slot b, but this slot is considerably longer than is necessary in practical use since in some machines the feeler comprises merely a cylindrical wire rod adapted to enter the slot.

As illustrated in Fig. 5 the winding pro- ,duced bymy invention is caused to start at a point a, below the feeling point of the slot and to extend downwardly toward the base 0 of thebobbin and thence upwardly for a full traverse so that in the first upward movement the feeler slot is entirely covered by a single layer of winding. It will be obvious that by this construction the last full traverse will be unwound from the top downwardly, thus exposing the feeler por tion of-thecslottothe action of the feeler lower portion of the bobbin will be-supplied by two layers of winding laid in opposite directions so that the end thereof is securely anchored to the bobbin and thus adapted to prevent a mispick or a defective pick of the loom. I 7

In order to provide for the commencement of the winding of filling at a point a, '(Fig. 5) above the base of the bobbin I have providedspecial means for positioning the cam 25 so that the roller 26 which projects from the builder arm 18 will rest upon a forward surface of the cam intermediate of its base and crest, preferably nearly to the crest of the cam, so that in its first movement the cam will depress the end of the builder arm thus lowering the ring rail 4 to cause a downward partial traverse of the filling upon the bobbin. 7

The means for positioning the cam in the preferred form of invention disclosed here in comprises mechanism for releasing said cam from its engagement with its driving shaft and for rotating the same to the desired position and locking it in such position until themachine is started.

As illustrated herein this mechanism comprises an auxiliary frame 30 preferably secured to the underside of the frame, or ladder 1, and having a downwardly and laterally extending end portion 31 which may carry at its end an adjustable bearing 32 adapted to receive the end of the shaft 33 which actuates the builder cam 25.

The cam 25 is preferably revolubly mounted upon the shaft 33 and may desirably be provided with an integral or relatively rigid sleeve 35 connected in turn to a disk 86 having teeth 37 which form the face of one of-a pair of clutch members. The disk 36 is preferably provided at its inner side with a series of lugs 38. Inthe present instance the cam 25 being shown as a four point cam the pins 38 are four in number for purposes which will hereinafter be pointed out.

By the above construction it will be noted that the cam sleeve 85 and the disk 36 are freely rotatable upon the cam shaft 33. In order to rotate the cam a companion clutch member 4-0 having teeth ll adapted to engage the teeth 37 of the disk 86 is snlined or-feathered upon the shaft 33, the disk l0 being preferably provided with an integral sleeve 4-2 having a groove 43 adapted to receive a feather upon said shaft. The sleeve 42 is provided with a groove 44t0 receive the arm 45 of a laterally movable shipper which is adapted to be operated to disengage the teeth 37 and 4:1. Theclutch member 40 is maintained normally in engagement with the clutch member 37 by a spiral spring t6 surrounding the shaft a8 and abutting against the outer side of the bearing member 32. The frame 30-also supports acountershaft which extends parallel to the cam shaft 33 and supports mechanism for disengaging the clutch members and also carries means for positioning the cam in the manner above specified.

' The shaft 50 is rotatably mounted in bearings 51 and 52 and supports the hub 53 or the shipper 4-5 which serves to slide the sleeve 4:2 and clutch member 10 longitudinally of the shaft 33 to disengage the clutch member. The shipper 45 is provided intermediate of its ends *ith an offset portion 5a inclosing an anti-friction roller 55 which is adapted to be engaged by a cam carried by an arm 57 extending from a hub 58 which is rigidly secured upon the shaft 50 so that when the shaft is rocked the engagement of the cam with the roller will impart to the shipper a sliding movement on the shafts 33 and 50 sufficient to disengage the teeth 37 and ii of the clutch members 36 and 40. When the connections between the cam and its shaft are thus disengaged the cam is free to rotate upon its shaft and may be easily positioned in respect to its engagement with the roller 26 of the builder arm. In the preferred form of the invention illus trated herein this is accomplished by pro viding a lever 60 having a heavily weighted end 61 with its upper surface formed by converging positioning faces 62, 63 adapted to engage two of the pins 38. The end of the lever 60 is preferably provided with an upstanding portion 64 adapted to engage the underside of the frame. The heavy weighted end 61 of the lever tends normally to hold the same out of engagement with the pins 88 at which time the projection 64: will rest against the underside of the frame of the machine.

The'lever 60 may desirably be provided with an extension having an offset portion 71 forming a foot lever adapted to be depressed by the oaerator to position the cam in the manner aforesaid.

' In the operation of the device the loom will be stopped, the filled bobbins dotl'ed and a fresh supply of empty bobbins placed upon the spindles. The'o-perator will then depress thefoot lever 71 causing the shaft 50 to rock in its bearings 51 and 52. This movement will first cause the cam 56 of the lever 57 to engage the roller and slide the shipper 5a longitudinally of the shafts 50 and 33 thus disengaging the clutch members 36 and 40 and releasing the cam from its connection with the cam shaft Further movement of the rock shaft will cause base of the cams in the manner illustrated in i Fig. l, the foot lever will then be released and the machine started. It will be obvious tiat the first movement of the lifter rail is downwardly thus laying a downward partial winning at the base of the bobbin in the manner aforesaid.

It is to be understood that while I hav described this invention in connection with a ring spinning machine the same can be readily applied to a cap spinning machine or fly frame and that the mechanism may be utilized to position a movable spindle rail as well as a ring rail and that various other modifications may be made within the scope of my invention.

Having thus described my invention what I claim as new and desire to secure by Let ters Patent is:

1. in a machine of the class described comprising a series of bobbin spindles and means for rotating the same, thread guiding means, builder mechanism for causing relative movement between the bobbins and the thread guiding means to cause a traverse of winding upon the bobbins, means for successively disengaging said builder mechanism from its source of power, and for positioning the same to a starting position whereby upon starting the machine an initial partial traverse toward the base of the bobbin will be laid before the first upward traverse is begun.

In a machine of the class described comprising a series of bobbin spindles and means for rotating the same, thread guiding means. means including a builder arm and actuating means therefor for causing rela tive movement between the thread guiding means and the bobbin to eifect a traverse of the winding upon the bobbins. successively operable means for disengaging said builder arm actuating means from its source of power and for positioning the samerelatively to the builder arm to a starting position intermediate of the limits of movement of the builder arm whereby the initial move rentof the builder arm will effect a single partia traverse of the winding toward the base 0 the bobbins and thereafter will cause a full pward and downward traverse of the threac upon the bobbins.

l a spinning machine a series of bobbin spindles and means for rotating the same, a ring rail 'provi ed with rings and travelers coiiperating with said bobbin to wind the thread thereupon, a builder arm connected to said ring rail means for actuating traverse will be laid toward the base of the bobbin and thereafter full upward and downward traverse will be effected.

4. In a spinning machine comprising a series of bobbin spindles and means for rotating the same, a ring rail provided with rings and travelers cooperating with said bobbins to wind the thread thereupon, a builder arm connected to said ring rail, means for actuating the same to raise and lower said ring rail, means for disengaging the builder arm actuating mechanism from its source of power and means operable thereby, means for positioning the same relatively to the builder arm to a starting position above the lowest point of movement of the builder arm whereby the initial move ment of the builder arm will effect a single downward traverse of the winding toward the base of the bobbins and thereafter will cause the full upward and downward traverse of-the thread upon the bobbins.

5. In a spinning machine having a series of spindles adapted to receive bobbins and means for rotating the same, cooperating thread guiding and twisting means, means for relatively moving said twisting means and said spindles to efiect the traverse of the winding upon the bobbin including a builder arm, a cam for operating the same, and means for positioning said cam to a starting position, comprising means for releasing said cam from its driving shaft and means for rotating said cam to position the same relative to the builder arm to cause the lat-- ter to be engaged by a surface of said cam at a point in advance of the crest thereof whereby the first winding movement will be a partial downward traverse.

6. In a spinning machine having a series of spindles adapted to receive bobbins and means for rotating the same, cooperating thread guiding and twisting means, means for relatively moving said twisting means and said spindles to effect the traverse of the winding upon the bobbin including a builder arm, a cam for operating the same and means for positioning said cam to starting position whereby the first winding movement will be a partial downward traverse,

comprising means for releasing said cam from its driving shaft and means for rotating and for locking said cam to cause the builder arm to rest thereon 1n advance of the crest thereof.

ment will be a partial downward traverse comprising means, for releasing said cam from its driving shaft and means for rotating and for looking said cam to cause the builder arm to rest thereon in advance 'of the crest thereof including a manually operable lever and means carried by said cam adapted to be engaged by said lever to position the same.

8. In a spinning machine, builder mechanism comprising a builder arm, a cam shaft, a cam rotatably'mounted thereon adapted to engage and to actuate said builder arm and having a clutch member, a companion clutch member slidably mounted on said cam shaft and means to cause the'engagement and disengagement of saidclutch members and means operable thereby to position saidjcam to starting position whereby the 'first' winding movement will be a partial, downward traverse.

9. I11 aspinning machine, builder mechanism comprising a builder arm, a cam shaft, a cam rotatably mounted thereon adapted to engage and to actuate said builder arm, a member rigidly securedto said cam having on one side a clutch face and on the opposite side a plurality of studs equal in number to the lobes of the cam, a relatively movable companion clutch member slidably mounted on said cam shaft, means to move the latter to disengage said clutch and a positioning lever adapted to engage said studs to rotate the cam to a starting position whereby the first winding movement will be a partial downward traverse.

10. In a spinning machine, builder mechanism comprising a builder arm, a cam shaft, a cam rotatably mounted thereon adapted'to engage and to actuate said builder arm, a

member rigidly securedto said cam having on one side a clutch face and on the opposite side a plurality of studs equal in number to the lobes of the cam, a relatively movable companion clutch member slidably mounted on said cam shaft, a positioning lever having a V-shaped portion adapted to engage two adjacent studs to position said cam, and manually operable means to actuate said clutch member and said positioninglever.

11. In a spinning machine, builder mechanism comprising a builder arm, a cam shaft, a cam rotatably mounted thereon adapted to engage and to actute said builder arm, a member rigidly secured to said cam having a shipper slidably mounted thereon and engaging said slidable clutch member, means carried by sald rock shaft to actuate said shlpper, a posltloning lever having a 10 l-shaped portion adapted to engage two adjacent studs carried by said rock shaft and manually operable means for actuating said rock shaft.

In testimony whereof I have signed my name to this specification, in the presence of 15 two subscribing Witnesses.

WILLIAM PARKER STRAW. Witnesses:

F. M. CASWELL, W. C. SWALLOW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Correction in Letters Patent No. 1,168,231!

It is hereby certified that in Letters Patent No. 1,168,231, granted January 11, 1916, upon the application of William Parker Straw, of Manch'wter, New Hampshire, for an improvement in Builder Mechanism for Spinning-Machines, an error appears in the printed specification requiring correction as follows: Page 4, line 24, claim 4, strike out the Word means, and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 1st day of February, A. D., 1916.

sear J. T. NEWTON,

Acting Commissioner of Patents. 

